Feeding mechanism for cameras.



G. S. DEY. FEEDING MECHANISM FOR CAMERAS. APPLICATIOH FILED MAY 2, 1910.

2 SHEETSSHEET l.

a al'l'otums Patented Apr. 1, 1913.

G. s. DEY. FEEDING MECHANISM FOR CAMERAS.

' APPLICATION FILED MAY 2, 1910. 1,057,41 2.

Patented Apr. 1, 1913.

2 SHEETS-SHEET 2.

811 manic z UNITED STATES PATENT oEEIoE.

GILBERT S. DEY, E ROCHESTER, NEW YORK, assronon,

BY MES'NE ASSIGNMENTS, To

COMMERCIAL CAMERA COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORA- TION0F RHODE ISLAND.

FEEDING MECHANISM FOR CAMERAS.

Application filed May 2, 1910. Serial No. 558,782.

I To all whom it may concern:

v mechanism- Be it known that I, GILBERT S. DEY, of Rochester, in thecounty of Monroe and State of New York, have invented certain new anduseful Improvements in Feeding Mechanism for Cameras; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference being had to the accompanying drawings, forminga part ofthis specification, and to the reference-numerals marked thereon.

My present invention relates to photography and it has for its object toprovide a J photographic camera with simple and convenient means forfeeding the sensitized material across the field of exposure and withfor accurately controlling the areas fed and exposed so that, amongother things, a minimum amount of waste is made necessary, particularlyin taking pictures of difierent sizes. I

The improvements are further directed to ward preventing mistakes on thepart of the operator in adjusting the parts for these purposes andtoward providing means for conveniently making the adjustments andcontrolling the inner arrangements from the exterior of the apparatus.

To these and other ends the invention consists in certain improvementsand combinations of parts all as will be hereinafter more fullydescribed, the-novel features being pointed out in the'claims at the endof the specification.

In the drawings: Figure 1 is a central vertical Section through a cameraconstructed in accordance with and illustrating one embodiment of myinvention; Fig. 2 is a side elevation of the body portion thereof; Fig.3 is an enlarged elevation of the feed operating and controlling parts,as mounted on the exterior of the casing, Fig. 4 is a section takensubstantially on the line 4-4 of Fig. 3 Fig. 5 is a section takensubstantially on the line '5-5 of Fig. 3; Fig. 6 is a detail of the feedarresting device taken in section through the mounting platesubstantially on thel-ine 66 of Fig. 3; Fig. 7 is a detail section takensubstantially on the line7-7 of Fi 8; Fig.8 is a detail elevation of theclutch in the feed roller, and Fig. 9 is a cen- Specification of LettersPatent.

Patented Apr. 1, 1913.

tral section through the same on the line 9-9 of Fig. 8. v

Similar reference numerals throughout the several figures indicate thesame parts.

The camera illustrated in the present embodiment of the invention is ofatype wherep in the sensitized material is fed in a continuous strip froma roll across the focal plane and the previously exposed portionsimultaneously fed into a receptacle for developing or storage purposesand severed simultaneously with the disposal of a fresh portion of thestrip in the focal plane. Its main parts comprise a bed 1 to which thefront 2 is rigidly attached and provided with a suitable lens mount 3adjustable vertically thereon by a rack bar and pinion 4. The

Y front is connected to the mam casing of the immediately after theexposure is made for immediate development or for the purpose of storingthem for future development.

The back 8 is divided into upper and lower chambers 15 and 1.6,respectively, the

former cpnstituting the'roll holding or the storage chamber for thesensitized material previous to exposure and the front walls 17 and 18,respectively, of both being preferably arranged in the sameplane to forma backing or support for that portion of the material which is disposedin the 'focal plane of the camera during exposure. The roll holder 19contains a reel or spool 20 upon which a strip of sensltized material 21is coiled and withdrawn as needed from the chamber 15 through'an exitopening 22 at the top of the wall 17 from which polnt it is leddownwardly across the walls 17 and 18,

as indicated at 23, and entered betweenrollers 24 and 25 that feed itthrough an opening or passage 26 at the bottom of the back into thestorage chamber 12 or the receptacle 14 therein.

In the practice of my invention the line of contact betweenthese-rollers 24 and 25 is substantially in the plane of the backing 17,18, the forward roller-25 being in front of the wall 18 and the roller24 in rear of the wall at the lower front corner of the chamber 16. Thelast mentioned roller constitutes the feed roller and is preferablyjournaled in plates 27 and 28 secured on opposite sides of the backportion 8 of the main casing of the camera being prevented from turningin a reverse direction preferably by means of a ball clutch, such asthat shown in Fig. 8, the innermember 29 thereof being carried by theshaft 30 of the roller and the outer member 31 being mounted on theplate 28. The shaft 30 is locked with the inner member 29 by means of apin '32 on the said member that enters a slot 33 in the end of the shaftso that the latter canbe removed from its bearings when necessary,without disturbing the clutch as a whole. The opposite eXteriorly.projecting end of the roller shaft 80 is fitted with a suitableoperating crank 34 having a handle portion 35.

The roller 25 is in the nature of a pressure roller and is preferablymounted on an arm 36 pivoted to the plate 28 at 37 to operate within achamber 39 formed by a recess in the wall of the casing or back 8beneath the plate, which arm holds the roller. in contact with oragainst the feed roller 24 under the v influence of a suitable spring40. The arm is extended beyond the pivot as at 41, whereat it isengagedby a cam 42 on a shaft 43 spanning the chamber 16 and journaledin the plates 27 and 28, partial rotation being given thereto by anexteriorly arranged handle or crank 44 in such manner that the cam 42os-- cillates the arm or lever 36 and separates the rollers 24 and 25when it is desired to insert the end of the strip of sensitized material23 between them or release it from their engagement.

After an exposed length of sensitized material has issued from betweenthe rollers through the passage 26 it is preferably severed by a knife45 reciprocating in guides 46 in the walls of the chamber 16 beneath therollers, the knife being, in the present instance, operated by pinion 47meshing with a rack 48 thereon, said pinion being carried on a shaft 49spanning the chamber 16 and provided with an exteriorly arrangedoperating crank 50. A spring 51 acting between the pinion 47 and abearing support 52 of the shaft 49 operates to return the knife afterthe severing operation when the crank 50 is released and to return thelatter also.

An opening 53 is provided in a side wall of the back portion 8 throughwhich a suit from the body the function of the shutter being to seal theback so that its sensitized contents cannot be destroyed. There is alsoprovided, preferably in the same wall, an opening 54 through which ashutter member 55 may be introduced. The normal area of the field ofexposure of the camera, which is the maximum area, is defined by theentire expanse of the backing support 17 18 forming the rear wall of theexposure chamber 10, but it is sometimes desired to make a picturecovering less than this area: In such a case it is the function of theshutter 55 to screen or mask off a portion of the sensitized length 23that has been drawn into the focal plane against the backing 17, 18 andreserve that portion for subsequent exposure.

In the camera of the present embodiment the maximum length of the stripthat can be exposed is fourteen inches and the shutter 55 is designed tomask the upper half thereof and leave an area of seven inches inposition for exposure. To properly record the photograph thereon it is,of course, necessary to recenter the lens with relation to this area andit is for this reason that the lens mount 3 is made verticallyadjustable upon the front 2. v

When a picture of the maximum size is taken, the feed roller 24 must, ofcourse, reel off the total fourteen inches into the pan 14 before theknife is operated, a fresh fourteen inch area of the stri beingsimultaneouslv drawn into the field of exposure from the chamber 15, butwhen a halfsize photograph is made it must reel off only seven inches sothat the knifemay sever only that'portion lying between the rollers andthe lower edge of the shutter 55 and the portion lying behind the lattermay be drawn into the re stricted field of exposure.

iently accomplish this measurement and judge of the interior adjustmentsfrom the exterior. i provide suitable mechanism for controlling the feedroller 24, which mechanism is, in the present instance, mounted on theplate 27 and comprises a toothed wheel or disk 56 arranged within achamber 57 formed by recessing a wall of the casing beneath the plate,which disk is geared with a pinion 58 on the roller 24 or its shaft 30to turn therewith, the latter also carrying a gear 59 meshing with agear 60 on the pressure roller 25 to cause the positive operation of thelatter. This disk 56 is provided with an aperture 61.and with two otherapertures 62 both arranged nearer the center of rotation and to the samedegree than the aperture 61. These apertures form stops with which isadapted to engage an abutting pin 63 on a laterally movable spring arm64 pivoted at 65 to permit the abutment to be the lever 64,

' sitized strip while it moved selectively into the path of the stop 61or that of the stops 62, with any of which it can snap into engagementthrough openings 66 in the plate 27. The lever 64 is operated by meansof a handle portion 67 and its outward movement limited by the headedpin 68. p Also pivoted on the plate 27 at 69 to oscillatelaterally is alever 70, one end of which is provided with an abutment 71 movable intoand out of the path of a portion 72 on the feed operating crank 34,while the other end 74 has a sliding engagement with being confinedbetween the handle portion 67 thereof and the body of the lever, stmotion being preferably prevented by the interposition of a leaf spring7 3.

The gearing between the rotary disk 56 and the feed roller 24 is such inthe present instance that the former makes one comlete'revolution whilethe latteris reeling off the full fourteen inch length of thesencorrespondingly makes but a half revolution when a half length ofseven inches is fed by the roller. The series of stops 61 and62 aretherefore all on the same diameter of the disk and when a full lengthpicture is made the lever 64 is adjusted on its pivot so thattheabutment 63 lies in the path of the stop 61 and in engagement therewithTo. reel OK the exposed area, the abutment is disengaged by arlateralmovement of the lever 64 either through manipulation of the handleportion 67 or inward pressure upon a thumb piece 75 on the lever 70 andthe crank 34 of the feed roller turned. The thumb piece can then bereleased an the abutment 63 will ride on, theface of the disk throughouta full rotation of the latter, the abutting portion 71 of the lever 70being held out of the path of the feed roller crank 34, but when suchrotation is completed the abutment 63 again snaps into engagement withthe stop 61 and prevents further feeding. The abutment 71 on the lever70 is simultaneously operated back into the path of the crank 34 andengages the latter, at 72, in the vicinity of the operatinghandle 35 toact as an arresting device forthe crank individually so as to preventundue strain from being com= Y municated to the gearing should theopera- The tor continue the revolvin pressure. knife 45 is then operate,as before described, to sever the exposed area and a repetition of theoperation may take place.

A pointer 76 on the arm 64 cotiperates with a suitable character 77 onthe plate 28 when the abutment 63 'is set for the full feed and to acharacter '78 when set for a half feed. In the latter position it is inthe path of the stops 62 with which it engages alternately allowing ahalf revolution of the disk 56"each time, the action of the partsbeingotherwise the same as before.

In the event that the operator might versely,

otherwise neglect to move the arm 64 over to the character-78 to effecta limited feed when he places the shutter 55 into position for a smallsized picture, I provide a looking device 79 that blocks the opening 54against the passage of the" shutter automatically when the controllingdevices are adjusted for the full feed, preventing, in such instance,sensitizedmaterial fed and the. area of the field of exposure that wouldresult in the variation between the area of the severing of the area ofthe strip behind the shutter without its being exposed. This lockingmember in the present instance is provided in the form of an extensionon the arm 64 which moves across the opening with the limitingadjustment of the arm. Conwhen the shutter 55 is in place it preventsthe movement of the locking extension 7 9 across the opening and rendersit impossible to move the arm 64 back for a maximum feed until it' iswithdrawn thus preventing the feed of fourteen inches when only seveninches can be exposed.

I claim as my invention: 7

1. lhe combination with a camera, provided with means for feedingsensitized material across the field of exposure of a shutter adapted tobe set to control the size of the field of exposure, a feedcont-roldetermined feed of material, and a device operating on one ofsaid controlling elements according to the adjustment of the other toprevent a resetting of one independent-1y of the other and a resultingvariation between the area of area of the field of exposure.

2. The combination with a camera pro vided with means forfeedingsensitized material across the field of exposure, of a movableshutter for controlling the size of the field, arranged to limit todifferent degrees corresponding with the size of the field the amount ofmaterial fed at one operation, and a locking device for the shutteroperated by the adjustment of such mechanism to prevent a change in thesize of the field of exposure without a corresponding readjustment ofthe field controlling mechanism.

3. The combination with 'a camera provided with means for feedingsensitized material across the field of exposure, of a movable shutterfor controlling the size of the field, an adjustable controllingmechanism arranged to limit to different degrees corresponding with thesize of the field the amount of material fed at one operation, and alocking device held in position by the shutter to lock the feedcontrolling mechasponding change in the size of the field of exposure.

the material fed and the r an adjustable controlling mechanism nismagainst readjustment without a cone 95 ling mechanism adapted to be setfor a prec and a second arm movable with the first intoand out of aposition in which it obstructs the opening in the casing against thepass sage of the shutter to prevent a change in the size of the field ofexposure without a corresponding adjustment of the feed controllingmechanism.

5. The combination with a camera having an opening in the casing thereofand a shutter adapted to be passed through the opening to reduce thesize of the field of exposure of the camera, of means for feedingsensitized material across the field of exposure, an adjustablecontrolling mechanism arranged to limit to different degreescorresponding with the size of the field the amount of material fed-atone operation, said mechanism embodying a movable arm, and a second armmovable within the first and held in position by engagement with theshutter when the latter is in operative position to lock the arm of thefeed controlling mechanism against readjustment without correspondinglychanging the field of exposure through manipulation of the shutter.

6. The combination with a camera, of a roller for feeding sensitizedmaterial across the field of exposure thereof and controlling mechanismfor the roller for regulating the amount of feed comprising a memberrotating with the roller and provided with a plurality of stops arrangedat different distances from the. center of rotation and a springactuated arm provided with an abutment movable into the paths of theseveral stops, selectively.

7 The combination with a camera, having an opening in the casing thereofand a shutter adapted to be passed through the opening to reduce thesize of the field of exposure of the camera, of a roller for feedingsensitized material across the field of exposure, a member rotating withthe roller and provided with a plurality of stops arranged at differentdistances from the cen ter of rotation, a spring actuated arm providedwith an abutment movable into the path of the several stops,selectively, to limit to-different degrees corresponding with the sizeof the field the amount of material fed at one operation and anextension on the arm movable with the adjustments thereof into and outof a position in which it obstructs the opening in the casing againstthe passage of the shutter to prevent a change in the size of the fieldof exposure without a corresponding adjustment of the means controllingthe feed roller.

8. The combination with a camera, of a roller for feeding sensitizedmaterial across the field of exposure thereof and controlling mechanismfor the roller for regulating the amount of the feed comprising a memberrotating with the roller and provided with a plurality of stops arrangedat different distances from the center of rotation, a pivoted armprovided with an abutment movable laterally into the paths of theseveral stops selectively, an arm on the feed roller,

and an arresting device having a sliding connection with the pivoted armand operated into and out of the path of the roller arm with the lateralmovements of the pivoted arm abutment into and out of engagement withthe stops on the rotary member.

9. The combination with a camera, of a roller for feeding sensitizedmaterial across the field of exposure thereof and controlling mechanismfor the roller for regulating the amount of the feed comprising a memberrotating with the roller and provided with a stop, an arm provided withan abutmentin the path of the stop and movable into and out ofengagement with the latter, an arm on the feed roller and an arrestingdevice actuated into and out of the path of the rollerarm with themovement of the abut ment into and out of engagement with the stop onthe rotary member.

10. The combination with a camera, of a roller for feeding sensitizedmaterial across the field of exposure thereof and controlling mechanismfor the roller for regulating the amount of the feed comprising a memberrotating with the roller and provided with a stop, an arm having anabutment in the path of the stop and movable into and outof engagementwith the latter, a crank on the feed roller for turning the same and anarresting device actuated into and out of the path of the crank with themovement of the arm abutment into and out of engagement with the stop onthe rotary member.

GILBERT S. DEY.

Witnesses:

OSCAR F. GREGORY, RUssELL B. GRIFFITH.

